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23 November 2021 | Story Leonie Bolleurs | Photo Supplied
With her talk on ‘Breaking the walls of darkness’, Emmie Chiyindiko came in second out of the 74 pitches presented at the recent Falling Walls Science Summit.

“I need you to take a moment and imagine trying to do everything that you do every day … without reliable energy. Or I’ll ask you this … How far would you walk to charge your phone if you didn’t have electricity? Would you walk for hours? Kilometres?”

“Well, that’s what millions of people in sub-Saharan Africa do daily to charge their phones. One billion people globally don’t have access to electricity in their homes and in sub-Saharan Africa, more than half of the population remains in the dark.”

This was the introduction to Emmie Chiyindiko’s talk at the recent Falling Walls Science Summit earlier this month. Emmie, who is a PhD student in Chemistry at the University of the Free State (UFS), came in second out of the 74 pitches presented with her talk on ‘Breaking the walls of darkness’ in the ‘Breakthrough of the year in the emerging talents category’.

Falling Walls Lab is a world-class pitching competition, networking forum, and steppingstone that brings together a diverse and interdisciplinary pool of students, researchers, and early-career professionals by providing a stage for breakthrough ideas, both globally and locally. 

Emmie, who sees getting out of bed every morning as just another opportunity to “be the exceptional young black female scientist that I am”, won the local Falling Walls Lab in Cape Town in October, which resulted in her going through to the finals in Berlin. She plans to host the Falling Walls Lab in Zimbabwe, her homeland, next year. 

This innovator and science communicator, whose work has been covered in Forbes Science, News24, and the Sunday Times, among others, refers to her obtaining second place on the international stage for her research as “a tremendous achievement and a new height in my science communication career. That level of recognition from the world leaders in science, technology, and science engagement cannot be overstated”.

Ending energy poverty

She believes Sustainable Development Goal 7 – leaving no one behind and eradicating global poverty – must be preceded by intentional efforts to end energy poverty. “My research on dye-sensitised solar cells (DSSC) with special metal complexes is among the most interesting alternatives to conventional solar cells.”

Emmie explains: “The design of the cells is inspired by photosynthesis – that good old process plants use to transform sunlight into energy via chlorophyll. Instead of a leaf, the cells start with a porous, transparent film of eco-friendly titanium dioxide nanoparticles. The film is also coated with a range of different dyes that absorb scattered sunlight and fluorescent light. When sunlight hits, it excites the electrons in the dye, creating an endless supply of energy. 

The bright side of this research is that there are several benefits to this invention. It produces energy that is cheap, reliable, and relatively simple and inexpensive to produce. Emmie adds: “These next-generation cells also work impeccably in low-light and non-direct sunlight conditions, providing all-year-round energy with no disruptions. DSSC is also three times cheaper than conventional cells and produces 40% more energy.”

Improving livelihoods 

She continues: “It does not degrade in sunlight over time as do other thin-film cells, making the cells last longer, and requiring less frequent replacement. DSSCs are also mechanically strong, because they are made of lightweight materials and do not require special protection from rain or abrasive objects.”

Emmie has proven that solutions to our current energy situation are available. “We are on the cusp of an energy revolution, and we must act now. Solutions are available, and if we do not seize them during a time of crisis, when will we?”

She believes that creating technology like this can end the energy crisis and improve livelihoods. “Billions of people simply lack enough energy to build a better life. Affordable, abundant, and reliable energy can go a long way to store food, power life-saving medical equipment, and run trains and factories. It can help communities to grow and prosper and to access opportunity and dignity. Societies where people have access to energy have lower childhood mortality, a higher life expectancy, they eat better and drink cleaner water, and have a better literacy rate.”

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Graduates convene with global leaders at the UFS 2015 Winter Graduation ceremonies
2015-07-07

Dr Hendrik Auret, dr Gerhard Bosman en dr Madelein Stoffberg.
Foto: Leonie Bolleurs

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The University of the Free State’s 2015 Winter Graduations, which took place from 1-2 July 2015 on the Bloemfontein Campus offered several highlights. Three global leaders received honorary doctorates. A further 2 000 degrees and diplomas were conferred to graduates in the seven faculties of the university.

For the first time in the history of the UFS, three PhDs in Architecture were awarded simultaneously. Hendrik Auret, Gerhard Bosman, and Madelein Stoffberg’s outstanding achievements are a milestone in the university’s pursuit of academic excellence.

Furthermore, three PhDs were conferred on graduates from the Department of Consumer Science in the Faculty of Natural and Agricultural Sciences. Ismari van der Merwe, Natasha Cronje, and Gloria Seiphetlheng set a precedent when they walked across the Callie Human stage to collect their doctorates at the same graduation ceremony.

This year, the university produced 66 Doctors of Philosophy in various fields of study. Six of these PhDs were awarded in the Department of Physics. Three graduates in the Department of Soil- and Crop- and Climate Sciences received PhDs at the Winter Graduation. They are Tesha Mardamootoo, Elmarie Kotzé, and David Chemei.

Dr John Samuel.
Photo: Johan Roux

Keynote speakers provide enlightenment to graduates

On Wednesday 1 July 2015, Dr John Samuel, SA’s leading education expert, addressed 707 diploma graduates from the Centre for Financial Planning Law and the School of Open Learning. For the graduates’ future reference, Samuel offered invaluable knowledge he had accumulated over the years as Chief Executive of the Nelson Mandela Foundation. “One of the lessons I have learnt was not only the importance of time, but it was in fact what being on time demonstrated,” he said. “Being on time was demonstrating respect, respect for the people you are meeting, and for the occasion.”

On the second day of graduation, Nataniël, South African singer, songwriter, and entertainer spoke to Master’s and doctoral graduates in the Faculties of Economic and Management Sciences, Humanities, Education, Health Sciences, Law, Theology, and Natural and Agricultural Sciences. His keynote spoke to the graduates’ sense of resolve in saying, “nothing is ever accidental. It is always with a purpose, it is your turn to make the world a better place.” He added that “it is important to strive for excellence and to be proud of what you are doing.”

Honorary doctorate recipients in a nutshell

Dr Samuel is one of the three exceptional global leaders to receive honorary doctorates from the university on 1 July 2015. His accolade was presented by the Faculty of Education. He has contributed to the Public Participation Education Network (PPEN) campaign as a founding member. He established the Centre for Education Policy Development, the Joint Working Group (for The National Party Government and the ANC), the National Education Conference, and the National Education and Training Forum. In addition, he made leadership contributions to the First Education and Training White Paper, the first Green Paper on Higher Education, and is the CEO of the Oprah Winfrey Leadership Academy for Girls. The WK Kellogg Foundation in the USA operates under his directorship.

Professor Heidi Hudson, Director of the Centre for Africa Studies at the UFS and Dr Lakhdar Brahimi.
Photo: Mike Rose from Mike Rose Photography

Dr Lakhdar Brahimi received an honorary doctorate from the Centre for Africa Studies. Algerian-born Brahimi was first involved with the United Nations (UN) in 1992, and has since been deployed all over the world on peacekeeping missions. Amongst many other countries, he has worked as a mediator for South Africa, Haiti, Afghanistan, Iraq, Syria, Democratic Republic of Congo, Cameroon, Burundi, Angola, Liberia, Nigeria, Sudan, and Côte d’Ivoire on behalf of the UN. He also played a direct role in South Africa’s democratic transition as a special representative in 1993/4.

Dr Mercy Amba Oduyoye received an honorary doctorate from the Faculty of Theology. Dr Oduyoye is widely regarded as one of the most influential women theologians in Africa. She was the first black woman to receive a degree in Theology in 1965 from Cambridge University in the United Kingdom. She continues to shift the paradigm of gender in theology internationally as the director of the Institute of African Women in Religion and Culture at the Trinity Theology Seminary in Ghana.

Dr Mercy Oduyoye.
Photo: Johan Roux

In closing the academic celebrations

Vice Rector: Academic, Dr Lis Lange, commended the class of 2014 for making their contribution to the educational system. Prof Jonathan Jansen, Vice Chancellor and Rector, also congratulated the graduates in closing.

“This is a day many have worked very hard towards, it is an enormous achievement as well as a development in the quality of research, and the courage to research,” he said in a vote of confidence.

Dr Khotso Mokhele, Chancellor of the UFS, applauded the university in light of the increased number of female graduates who completed their degrees with distinctions. The transcendence of demographics, both in terms of gender and race, on a postgraduate level, increases the hope of achieving gender equality in both the academic arena and South Africa.

More graduation news

A number of distinctions were also awarded during the two-day ceremony. For a list of these distinctions, follow this link.

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